EncFS
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![PDF] EncFS goes multi-user: Adding access control to an encrypted ...](/imgres?imgurl=https://d3i71xaburhd42.cloudfront.net/23a06dcc4dceea589e07791cc38469d64aa12bc8/3-Figure1-1.png&imgrefurl=https://www.semanticscholar.org/paper/EncFS-goes-multi-user%253A-Adding-access-control-to-an-Leibenger-Fortmann/23a06dcc4dceea589e07791cc38469d64aa12bc8&h=464&w=684&tbnid=GgyMWM_CDwdXkM&q=EncFS&tbnh=94&tbnw=139&usg=AI4_-kQ_lGfFqysdo04w5v9_WnroE-ViGg&vet=1&docid=G7G2zNdIoGfbUM&sa=X&ved=2ahUKEwjG3b-En-GFAxWSkIkEHe_lDFoQ9QF6BAgAEAc)
EncFS is a Free FUSE-based cryptographic filesystem. It transparently encrypts files, using an arbitrary directory as storage for the encrypted files.
Two directories are involved in mounting an EncFS filesystem: the source directory, and the... Wikipedia